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$119+ Cheap flights from Medford to Ontario (MFR - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
MFR — ONT
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheap flight deals from Medford to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Medford (MFR) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$238
(Alaska Airlines)

One-way from

$119
(Alaska Airlines)

Popular in

August

Cheapest in

October

Average price

$539
From Medford to Ontario
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One-way flight from Medford to Ontario
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Highest demand for flights based on searches. 13% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Medford to Ontario

Cheapest flights from Medford to Ontario
Explore the most affordable flight options available from Medford to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:52 pmMFR - ONT
1 stop7h 59mAlaska Airlines
Sat 11/156:00 amONT - MFR
1 stop7h 55mAlaska Airlines
Deal found 8/19$238
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/194:52 pmMFR - ONT
1 stop19h 51mMultiple Airlines
Fri 9/266:00 amONT - MFR
1 stop10h 02mMultiple Airlines
Deal found 8/20$240
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:00 pmMFR - ONT
1 stop5h 40mDelta
Thu 10/26:00 amONT - MFR
1 stop4h 58mDelta
Deal found 8/19$241
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:47 pmMFR - ONT
1 stop6h 16mAlaska Airlines
Mon 9/227:10 amONT - MFR
1 stop4h 49mAlaska Airlines
Deal found 8/19$242
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/194:52 pmMFR - ONT
1 stop19h 51mMultiple Airlines
Sun 9/217:30 pmONT - MFR
1 stop14h 38mMultiple Airlines
Deal found 8/20$246
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:15 amMFR - ONT
1 stop7h 02mDelta
Mon 9/291:15 pmONT - MFR
2 stops9h 35mDelta
Deal found 8/21$248
This Hawaiian Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:45 amMFR - ONT
1 stop5h 34mHawaiian Airlines
Tue 12/167:10 amONT - MFR
1 stop4h 46mHawaiian Airlines
Deal found 8/19$257
This Hawaiian Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:47 pmMFR - ONT
1 stop6h 16mHawaiian Airlines
Sun 9/286:00 amONT - MFR
1 stop5h 25mHawaiian Airlines
Deal found 8/20$259
This Kiwi.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/54:52 pmMFR - ONT
1 stop5h 03mMultiple Airlines
Mon 9/86:00 amONT - MFR
1 stop8h 47mMultiple Airlines
Deal found 8/20$262
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:55 amMFR - ONT
1 stop6h 36mDelta
Fri 11/141:00 pmONT - MFR
2 stops10h 09mDelta
Deal found 8/21$265
This Hawaiian Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:02 pmMFR - ONT
1 stop6h 31mHawaiian Airlines
Mon 10/201:31 pmONT - MFR
1 stop5h 33mHawaiian Airlines
Deal found 8/20$275
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:00 pmMFR - ONT
1 stop5h 40mDelta
Sun 9/146:00 amONT - MFR
1 stop4h 58mDelta
Deal found 8/19$277

Cheapflights Fare Finder

 
Customize your flight search to find flights from Medford to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Medford to Ontario that are best for you.

Fly from

Medford

Fly to

Ontario

Route

Depart

Return

Price

MedfordOntario

MFR - ONT

MFRONT

Medford

Wed 10/15

3:52 pm-11:51 pm

1 stop7h 59m

Ontario

Sat 11/15

6:00 am-1:55 pm

1 stop7h 55m

$238

MedfordOntario

MFR - ONT

MFRONT

Medford

Sat 12/13

1:30 pm-6:32 pm

1 stop5h 02m

Ontario

Mon 12/15

4:15 pm-12:32 am

1 stop8h 17m

$240

MedfordOntario

MFR - ONT

MFRONT

Medford

Fri 9/19

4:52 pm-12:43 pm

1 stop19h 51m

Ontario

Fri 9/26

6:00 am-4:02 pm

1 stop10h 02m

$240

MedfordOntario

MFR - ONT

MFRONT

Medford

Wed 10/1

5:00 pm-10:40 pm

1 stop5h 40m

Ontario

Thu 10/2

6:00 am-10:58 am

1 stop4h 58m

$241

MedfordOntario

MFR - ONT

MFRONT

Medford

Thu 9/18

5:47 pm-12:03 am

1 stop6h 16m

Ontario

Mon 9/22

7:10 am-11:59 am

1 stop4h 49m

$242

MedfordOntario

MFR - ONT

MFRONT

Medford

Thu 9/18

5:47 pm-12:03 am

1 stop6h 16m

Ontario

Mon 9/22

7:10 am-11:59 am

1 stop4h 49m

$242

MedfordOntario

MFR - ONT

MFRONT

Medford

Fri 12/12

1:30 pm-6:32 pm

1 stop5h 02m

Ontario

Fri 1/9

4:05 pm-12:09 am

1 stop8h 04m

$242

MedfordOntario

MFR - ONT

MFRONT

Medford

Fri 9/26

5:47 pm-12:03 am

1 stop6h 16m

Ontario

Mon 9/29

6:00 am-11:25 am

1 stop5h 25m

$242

MedfordOntario

MFR - ONT

MFRONT

Medford

Mon 12/15

8:20 am-12:46 pm

1 stop4h 26m

Ontario

Thu 1/8

11:00 am-3:39 pm

1 stop4h 39m

$242

MedfordOntario

MFR - ONT

MFRONT

Medford

Thu 9/18

5:47 pm-12:03 am

1 stop6h 16m

Ontario

Thu 9/25

7:40 pm-12:33 am

1 stop4h 53m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 23 results
1
2
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Best time to book a flight from Medford to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Medford with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Medford to Ontario

What is the cheapest month to book a flight from Medford to Ontario?

Currently, August is the cheapest month in which you can book a flight from Medford to Ontario (average of $246). Flying from Medford to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MFR to ONT?

Find hourly flight availability from Medford to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

One of the essential ways to save on airfare from Medford to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 24% on airfare.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated August 21, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Medford to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
United Airlines
7.4
Good
8,930 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

PDX - SJC

They had no snacks and had to pay for the Wifi.

Related info for your journey

Find useful and relevant information for your journey from Medford to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Medford to Ontario?

    For as low as $240, Alaska Airlines can have you in Ontario from Medford in 5h 02m. Airlines will cover a distance of 641 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Medford to Ontario round-trip?

    Our cheapest airline available from Medford to Ontario is American Airlines. Our recent data shows that you can find tickets from as low as $216 on this airline. Additional options worth looking into are Delta and Alaska Airlines, starting at $218 and $237 round-trip. These flights start at 43% lower than the current average price 3 months from now.

  • Can I find deals for flights from Medford to Ontario that include hotel bookings?

    Yes. In addition to deals on Medford to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Medford to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Medford to Ontario.

  • Can I find deals for business class flights from Medford to Ontario?

    Yes. Cheapflights offers flight deals from Medford to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Medford to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Medford to Ontario (average of $246). Flying from Medford to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Medford to Ontario

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Top 4 airlines flying from Medford to Ontario

Discover the top 4 airlines that operate flights from Medford to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$216Average$399FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$290FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$237Average$342FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$242Average$359FlexibilityNo cancel feeOn-time69%

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